Christmas Light Webquest
Question: How does the type of circuit affect the strand of Christmas lights with a burned out bulb?
Independent variable: Type of circuit
Dependent variable: Number of bulbs lit after one bust
Hypothesis: If the Christmas lights are arranged in a parallel circuit then when 1 bulb bursts the other bulbs will light up.
When all three bulbs are in a parallel circuit all the bulbs are lit up at the same time.
OBSERVATIONS WHEN A BULB BUST
After a bulb bust all the other lights stay lit.
Hypothesis: If the Christmas lights are arranged in a series circuit then when 1 bulb bursts the other bulbs will not light up.
All the lights are lit.
OBSERVATIONS WHEN A BULB BURST
When a bulb burst all the other lights shut off.
A parallel circuit is the best series to use for Christmas lights because when a bulb burst the other lights stay lit. A series circuit is best because there is more than one path for the electricity to flow. When a bulb bust in the parallel circuit the other bulbs stayed lit while when a bulb bust in a series circuit all the other bulbs went out. In conclusion a parallel circuit is the best circuit for a string of Christmas lights.